তৰোৱাল নেজীয়া পখিলা
তৰোৱাল নেজীয়া পখিলা (, বৈজ্ঞানিক নাম- Graphium nomius) দক্ষিণ-পূব এছিয়াত দেখা পোৱা এটা চাতকনেজীয়া পখিলাৰ প্ৰজাতি। ইয়াৰ পাখিৰ দাঁতিত থকা স্পষ্ট বগা ফোঁটবোৰৰ বাবে ইয়াৰ ইংৰাজী নাম 'Spot Swordtails' ৰখা হয়।

বিতৰণ
তৰোৱাল নেজীয়া পখিলা ছিক্কিম আৰু অসমকে ধৰি পূব আৰু দক্ষিণ ভাৰত, শ্ৰীলংকা, নেপাল, বাংলাদেশ, ম্যানমাৰ, থাইলেণ্ড, ভিয়েটনাম, লাওছ আদি দেশত দেখা পোৱা যায়।

বিৱৰণ

তৰোৱাল নেজীয়া পখিলা মতা-মাইকী উভয়ৰে পাখিৰ ওপৰৰ অংশ নীলা-বগা। Fore wing: cell with five broad transverse black bands, tail black, edged and tipped with white.

Underside white, the black markings very similar but of a bronze-brown with the following exceptions:—Fore wing: extensions below the median vein of the basal, subbasal, and median transverse bands crossing the cell, and the inner portion below vein 4 of the terminal broad band, black: on the hind wing the inner discal band is broken, irregular and black, and is bordered by a series of red spots outwardly edged with black; Antennae black; head, thorax and abdomen creamy white, with a medial broad longitudinal stripe; beneath, the abdomen with lateral black stripes.

Wing expanse of 68–95 mm.

বাসস্থান
Generally found in deciduous forest areas, among bushes with lesser secondary growth. Locally abundant below 3000 feet and less common above this level. Generally stays close to hilly and forested country.

আচৰণ

Shy and wary. Flies close to the ground . Has a dodgy and fast flight, especially when disturbed. 
Often visits flowers. Spot Swordtails may be seen to cluster around flowering trees. They are fond of Gmelina arborea, a deciduous tree from dry areas. Basks close to the ground, with wings partially open or completely spread.Known migrant in Sri Lanka.

জীৱন-চক্ৰ
Individuals are active from February to June. They are most abundant in March–April. It has been recorded in Western India from July onwards for a few months. In the Nilgiris it has been recorded from February to October.

কণী

Eggs are spherical, yellowish and slightly shiny. They are laid singly on the upper surface or at the margin on the under-side of young leaves or buds.

পলু
Black with green underside. It has white transverse stripes. The anterior and posterior segments are yellowish. It has a pair of spines on each thoracic and anal segments. Glossy green osmeterium. Sluggish caterpillar which feeds mainly in the evening and at night.

লেটা
Has the usual horn which characterizes this group, and also two short processes on the head, and is of some shade of earthy-brown.

পোষক উদ্ভিদ
The larval host plants are Miliusa tomentosum, Miliusa velutina and Polyalthia longifolia of the Family Anonaceae. Miliusa tomentosum is a deciduous tree. The pupae of the previous year's brood emerge, seek mates and lay eggs just as the tree puts out new growth.

তথ্যসূত্ৰ

লগতে চাওক
 Evans, W.H. (1932) The Identification of Indian Butterflies. (2nd Ed), Bombay Natural History Society, Mumbai, India
 Gay,Thomas; Kehimkar,Isaac & Punetha,J.C.(1992) Common Butterflies of India. WWF-India and Oxford University Press, Mumbai, India.
 Haribal, Meena (1994) Butterflies of Sikkim Himalaya and their Natural History.
 Kunte,Krushnamegh (2005) Butterflies of Peninsular India. Universities Press.
 Wynter-Blyth, M.A. (1957) Butterflies of the Indian Region, Bombay Natural History Society, Mumbai, India.

পখিলা